Andrew Auernheimer, of New York, was convicted of identity theft and conspiracy to gain unauthorized access to computers. Each count carries a maximum prison sentence of five years.

Prosecutors said the former Fayetteville, Arkansas, resident was part of an online group that tricked AT&T’s website into divulging email addresses, including those of Bloomberg, Weinstein, then-White House chief of staff Rahm Emanuel, who is now mayor of Chicago, and other celebrities.